Range vent



March 27, 1928.

F. F. FORSHEE ANGE VENT Filed Sept Fig.1.

E; P .m

INVENTOR Frank F. Forsizee. BY

WITNSSES: y M.

ATTORNEY Patented Mar. 27, 1928.

i FRANK IF. FORSHEE, OF MANSFIELD, OHIO, ASSIGNOB T0 WESTINGHOUSE ELECTRIO MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

RANGE VENT.

Application filed September 26,1925. Serial No. 58,822.

Fig. 2 is a view, in vertical section, of the venting device embodying my invention and a portion of the top wall of the associated oven.

Fig. 3 is a plan view of the device shown in Fig. 2;

Fig. 4 is a view, in vertical section, taken along the line IV-IV of Fig. 3, showing the vent in its closed position, and.

Fig. 5 is a vertical sectional view'of the device shown in Fig. 4, with the vent in its open position. 7

Referring particularly to Fig. 1, an electric range comprises an oven structure 11 and a platform 12 supported by a plurality of legs 13. A vent 14 illustrated in detail in Figs. 2 to 5, inclusive, is shown in the top of the oven. As the range forms no particular part of my invention, it is not believed to be necessary to describe it in detail.

Referring to Fig. 2, the vent comprises two cylinders 15 and 16 each having substantially open tops and bottoms, one of which extends downwardly into the opening in the oven top 17 and the other of which is attached to the cylinder 15 from the inside of the oven, by means of screw threads 18 formed integral with the cylinders. The opening in the vent is regulated by a disc 19 that is pivotally mounted on a pivot pin 21 which extends diametrically through the upper cylinder 15. The disc 19 is caused to turn by means of a pivotally-mounted member 22 that is'attached to a cross member 23 by a rivet 20 in the upper cylinder 15.

The upper cylinder has an integral-formed annular flange 24 extending radially outward so as to rest on the upper portion 25 of the oven-top Wall 17. The bottom cylinder 16 having a laterally extending flange 27, is held in proper operative position relatively to theupper cylinder 15 through the engagement of the screw threads 18 therein and the flange 27 engages the inner portion 28 of the oven wall 17. Steam or gas is prevented from escaping through the opening 26 in the oven top 17 by reason ofthe fact that the flanges 24 and 27 press firmly against the oven-top walls 25 and 28. TWO recesses 29 and 31 are provided in the flange 27'so that a suitable tool may be applied to draw the two cylindrical members 15 and 16 together, thereby increasing the pressure exerted by the flanges on the oven-top walls 25 and 28 suificiently to insure a tight fittherebetween.

The member 22 comprises a handle portion 33, located above thetopportion of the cylindrical member 15, depending cam portion 30 located in the same plane as the handle portion 33, and a relatively narrow connecting portion 34, which extends at right angles to the handle and cam portions. The rivet 20 extendsthrough the cross piece 23- and the connecting portion 34 and permits of turning. the member 22 on a vertical aXlS. i

The disc 19 is provided with an integral relatively narrow lu'g 32 which is struck up from the disc above the pivot pin 21, as shown'more particularly in Figs. 2 and 3 of the drawings. VVhen'the disc 19 is in the position shown in Figs.2 and 4, in which the vent is substantially closed, the actuating member 22 is in a position so that the plane thereof is at substantially right angles to the pivot pin 21. If it is desired to turn the disc toopen the. vent, the member 22 is so turned that the end'of the member 30 that is located away from the handle portion 33 will approach the lug 32, and it is obvious from Fig. 3 that the actuating member 22 must be turned through an angle of almost 90 before it will engage the lug. When it does engage the lug 32, it will cause it and the disc 19 to turn veryvquickly on the pin 21 until a portion of the upper surface of the disc engages the side of, the portion 30, when the disc. and the actuating member will be in the positions shownin Fig. 5, and the vent will be open.

Upon turning the actuating member 22 in a direction opposite to that described above, the portion 30 engages the disc 19 and turns it on the pin 21, the greater part of the turning movement of the disc 19 being effected turn the disc in one direction.

by the initial turning movement of the portion 30, because the bottom edge of the portion engages the disc 19 closely adjacent to the pivot pin. Movement of the disc 19 beyond the position shown in Figs. 2 and a is prevented by the rear part of the portion 30, as this part is located on the other side of the pivot pin from that part of the portion 30 actually engaging and causing the turning movement of the disc 19. The pivotal mounting of the actuating member 22 is in a plane substantially at right angles to that of the disc 21. I

The device embodying my invention thus provides a relatively simple vent device, in which a disc is pivotally mounted on a pin extending laterally of the cylindrical member within which it is located, a relatively narrow lug being provided on the disc which is operatively engaged by a portion of an actuating lever having a pivotal mounting co-axial with the cylindrical member to Turning movement of the disc in this direction is limited by the portion of the lever initially engaging the lug. Turning movement of the disc in the opposite direction is effected by the same portion of the lever engaging one face of the disc, the turning movement of the disc in the opposite direction being limited by a another portion of the actuating lever.

Various modifications of my invention other than. those shown inthe drawings will be obvious to those skilled in the art, and I desire that only such limitations be placed on my invention as are imposed by the prior art.

I claim as my invention:

1. In a rangevent, in combination, a sub stanti-ally opened ended cylindrical member, a disc in said cylindrical member pivotally mounted therein, a pivot pin for said disc extending laterally of said cylindrical member, a projection on said disc extending laterally of the plane of the disc and located above said pivot pin, and an actuating lever for said disc having'a portion operatively engaging one side of said projection to turn the disc in one direction and to limitthe turning movement thereof in that direction.

2. In a range vent, in combination, a substantially open ended cylindrical member, a disc in said cylindrical member pivotally mounted therein, a pivot pin for said disc extending laterally of said cylindrical member, a projection on said disc extending laterally of the plane of the disc and located above said pivot pin, and an actuatinglever for said disc having a portion operatively engaging one side of saidprojzection to turn the disc in one direction and to, limit the turning movement thereof in thatv direction, and for operatively engaging a face of the disc to turn it in the opposite direction.

3. In a range vent, in combination, a substantially open ended cylindrical, member, a disc in said cylindrical member pivotally mounted therein, a pivot pin for said disc extending laterally of said cylindrical memher, a projection on said disc extending laterally of the plane of the disc and located above said pivot pin, an actuating lever'for said disc having a portion operatively engaging one side of said projection to turn the disc in one direction and to limit the turning movement thereof in that direction, and for operatively engaging a face of the disc to turn it in the opposite direction, said actuating lever having another portion for limiting the turning movement in the opposite direction.

In testimony whereof, I have hereunto sub scribed my name this 2 day of September, 1925.

FRANK r. ronsnnn. 

